U.S. planes simulate an attack on enemy squadron of attack planes during Air Corps Demonstrations in United States.

Simulated attack and planes in flight during Air Corps Demonstrations of Command Schools in United States. The planes simulate an attack on enemy squadron of attack planes. Planes in flight in formation. Us Army Air Corps Douglas A-2 attack aircraft, Curtiss A-3 Falcon aircraft and Curtiss-Martin NBS-1 planes being attacked by Curtiss P-1 Hawk aircraft.